Recent scholarship around teaching elementary mathematics supports the learning of early algebra with 5- to 12-year olds. However, in spite of the recognition of the affordances of early algebra, issues about how to introduce it remain open. Within this context, Davydov's work is often cited as a source of impressive demonstration of young…

Intended for college-preparatory students at the high school level, this unit investigates the changing tides in U.S.-Soviet diplomatic relations and the reasons for the change. The focus of the unit is on a series of particular episodes such as the questions of famine relief in the 1920's, diplomatic recognition in the 1930's, World War II, the…

Presents a map indicating the path of the "Einsatzgruppen" (mobile killing units of the German SS) military assault through Poland into the Soviet Union in 1941. Provides a map of the six extermination camps in Poland. Offers two maps illustrating the Jewish population of Europe before and after World War II. (CFR)

Presents a map of Europe identifying the location of major concentration camps, extermination camps, and massacre sites during World War II. Maintains that only a few of the over 400 sites in the former Soviet Union where entire Jewish villages were exterminated are shown. (CFR)